{-# OPTIONS --safe #-}

module Test.Examples.AccountSim.OffChain.Start where

open import Ledger.Prelude
open import Ledger.Conway.Specification.Transaction using (TransactionStructure)

open import Test.Examples.AccountSim.Datum
open import Test.Examples.AccountSim.OffChain.Lib
open import Test.Examples.AccountSim.Validator
open import Test.Prelude AccountSimData
open import Test.SymbolicData AccountSimData
open import Test.LedgerImplementation SData SData
open import Test.Lib valContext

open TransactionStructure SVTransactionStructure
open Implementation

startTxOut : Value → PlutusScript → TxOut
startTxOut v script = inj₁ (record { net = 0 ;
                           pay = ScriptObj (proj₁ script) ;
                           stake = just (ScriptObj (proj₁ script)) })
                           , v
                           , just (inj₁ (inj₁ (inj₁ (Always [])))) , nothing

-- txid, wallet, value at script, script index
startTx : (id w tw : ℕ) → (v : Value) → PlutusScript → Tx
startTx id w tw v script = record { body = record defaultTxBody
                         { txIns = Ledger.Prelude.fromList ((w , w) ∷ [])
                         ; txOuts = fromListIx ((tw , startTxOut v script)
                                               ∷ (w
                                                 , ((inj₁ (record { net = 0 ;
                                                                    pay = KeyHashObj w ;
                                                                    stake = just (KeyHashObj w) }))
                                               , ((startValue - feeValue) - v) , nothing , nothing))
                                               ∷ [])
                         ; txId = id
                         ; collateralInputs = Ledger.Prelude.fromList ((w , w) ∷ [])
                         } ;
                wits = record { vkSigs = fromListᵐ ((w , (_+_ {{addNat}} w id)) ∷ []) ;
                                scripts = ∅ ;
                                txdats = ∅ ;
                                txrdmrs = ∅ } ;

                txsize = 10 ;
                isValid = true ;
                txAD = nothing }